8464661 has 2 divisors, whose sum is σ = 8464662. Its totient is φ = 8464660.

The previous prime is 8464649. The next prime is 8464681. The reversal of 8464661 is 1664648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7187761 + 1276900 = 2681^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 8464661 - 2⁶ = 8464597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8464681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4232330 + 4232331.

It is an arithmetic number, because the mean of its divisors is an integer number (4232331).

Almost surely, 2^8464661 is an apocalyptic number.

It is an amenable number.

8464661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8464661 is an equidigital number, since it uses as much as digits as its factorization.

8464661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 8464661 is about 2909.4090465247. The cubic root of 8464661 is about 203.7995355490.

The spelling of 8464661 in words is "eight million, four hundred sixty-four thousand, six hundred sixty-one".